Product Description. Mylex DAC960PG

Appendix A

IBBU Option

Product Description

The Intelligent Battery Backup Unit (IBBU) option is an add-on module that protects the data in the RAID controller’s cache memory in the event of a power failure. This option is available only for full-length form factor versions of the DAC960PG/PJ PCI to Ultra-SCSI RAID Controller.

The battery backup module monitors the write back cache on the

DAC960PG/PJ, and provides power to the cache if it contains data not yet written to the drives when power is lost. The controller, with the IBBU installed, together occupy only one PCI slot on the host backplane.

Features

Some of the new features of the IBBU include:

• Gas gauge circuit for battery charge monitoring

• Quick charge to replenish a drained battery

• Support for low-power EDO ECC RAM modules

Battery Pack

3.6v, 650mAH

J1

Figure A-1. IBBU Components

Standoffs

Manual Number 775012 A-1